Molding a better future.

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Welcome to Stone Plastics

Stone Plastics is a privately held, state of the art, injection molding and manufacturing company boasting a 165,000 square foot facility. We are ISO9001:2015 certified with capability ranging from custom injection molding, 2-shot molding, inserting molding, pad printing, sonic welding and assembly services. We are uniquely vertically integrated with all services to handle our customer’s need for part feasibility, tool design/build management, equipment and automation design build, and in-house measurement of the finished part. We pride ourselves in quality every step of the way. We would love to partner with you, as together, we mold a better future.

What We Do

At Stone Plastics we take your part designs and turn them into a reality. Our experienced engineering and program management teams come along side our customers at the concept stage to help with design feasibility and follow thru with management of the entire process from tool build management thru the successful launch and PPAP of your product. Our roots are in scientific molding with presses ranging from 22 to 1000 ton with the ability to do traditional injection molding, 2-shot molding, and insert molding. To best serve our customers, we also provide secondary processes of Pad Printing, Sonic Welding and Assembly services.




Value Added

Innovation & Solution

At Stone Plastics we think about solutions in an out of box way. We have a great team of people that would be happy to talk with you about potential problems that you face and solutions in which we can solve those issues.


We have so many exciting opportunities here at Stone and we invite you to join our team! We are a company that values culture. We believe in the importance of working together as a team for a common goal and we would invite you to check out those opportunities!

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